The disclosure provides a film composition, wherein the film composition includes an oligomer and a crosslinking agent. The oligomer can have a structure represented by Formula (I) wherein R1 and R2 are independently hydrogen, C1-20 alkyl group, C2-20 alkenyl group, C6-12 aryl group, C6-12 alkylaryl group, C5-12 cycloalkyl group, C6-20 cycloalkylalkyl group, alkoxycarbonyl group, or alkylcarbonyloxy group; R1 is not hydrogen when R2 is hydrogen; a is 0 or 1; 100≥n≥1; 100≥m≥1; and when n is not 0, the ratio of n to m is from 3:1 to 1:4. The weight ratio of the oligomer and the crosslinking agent can be from 9:1 to 3:7. The oligomer has a number average molecular weight (Mn) from 1,000 to 8,000.